Guard device for motor-vehicles.



C. F. DENGLER & J. LLRICKETTS GUARD DEVICE FOR MOTOR VEHICLES.

. I APPLICATION EILED AUG-BLIEHB. 1,278,1 19.

Patented Sept. 10, 1918.

6 SHEETSSHEET I.

C. F. DENGLER & 1. L. RICKETTS.

GUARD DEVICE FOR MOTOR VEHICLES. APPLICATION FILED AUG.31. 19:6.

1 ,278', 1 19. Patented Sept. 10, 1918.

6 SHEETS-SHEET 2.

c. F. DENGLER 611. l. RICKETTS.

GUARD DEVICE FOR MOTOR VEHICLES.

APPLICATION mm AUGAS! Isis,

Patented Sept. 10, 1918.

6 SHEETS-SHEET 4 C. F. UENGLER 611'. LBKBKETTS.

GUARD'DEVICE FUR MOTOR VEHICLES.

APPLICATION FILED M163: HHS. Patented Sept 11.), 1918,

5 SHEETB C. F. D ENGLER & I. L. RICKETTS. GUARD DEVICE FOR MOTOR VEHICLES.

APPLICATION FILED AUG 3l. 19I6.

1 ,278, 1 1 9. Patvnfvd Sept. 10, 1918.-

' s SHEETSQSHEET a.

.. shall control the con'nectionsof'certain portionsof the ignition system of the engine that it is impossible-to start or run the "UNI ED STATES PA,

ENT OFFICE.

CHARLES E. DENGLEB AIiID JOHN L. RICKETTS, OF PHILADELPHIA, PENNSYLVANIA.

G Il'ABD DEVICE FOR MOTOR-VEHICLES;

' Specification of Letters Patent.

Patented. Sept. 10, 191 s.

' Appll catlon filed Augnlt 31,4918. Serial No. 117,967.

To all whom it mag concern.-

Be it know'n that we, CHARLES F. Dnncnan and JOHN L. lhcun'rrs, citizens of the United States, and residents of PhiladelghimPennsylvania, have invented Guard ev ces for Motm -vehicles, of which thefollo'wmg 1s a specification. 7

One object of our invention is to provide an appiiratusconvenientl applicable to motor vehicles yhich in ad ition to giving an alarm whenit is attem ted to start or' oper-. ate such a? vehicle wlu c said device is set,

latterexcept when our'apparatus hasbeen nunlockedor released froln'its' protective or set condition.

We further desire to provide a compact,-

substantial and reliable device, capable of being controlled by a suitable ke and tributin g which shall include means for soun ing an alarm (which may be of either theclosed or open circuit type or both) whenever any pre determined controlling member or members i of a motor vehicle shall be manipulated af;

ter. our device has been Set; the invention cont emplating also'a combination. of; parts for disarranging the electrical connectionsbetweenthe lgnitlng devices of the different cylindersoj; the engine and the currcnt'dlsder operation of the. engine an im possibility while our, device is in its set' cond tion.

: A furthei; object of the invention is to provide a device which in addition to giving an audible alarii'i when" an unauthorized 'perso'n" attemptsj to 'sturt and operate a moton've' hiclc, shal'l beirapablc ,ofbeingSo set that it will delay such starting and operation for a.

pinion ed period by seriously.-disarranging gme.

we secure as hereinafter set'fprth, reference eviee, so that the "ex lesions in saidcylin en! shall be out of t me, either "w th orwv-i-tliout means whereb y certain. oond'uctors' of 'g the ignition system shall be short circuitedor grounded or both,'so as to row.

pro ecting into the space" 'above the engine 15 va box 'or casmg 5 whose Figure 1 is a side elevation to some extent diagrammatic, illustrating our invention as applied ,to .a. motor vehicle;

ig. 2 is a diagram illustrating the prcferred arrangement of the apparatus constituting our invention;

Figs.- 3 and 4 are plans partly insection -taken at right angles to each other illustratngfhe preferred form of ouralarm device;

igs. 5, 6 and 7 inclusive are transv.ersc sections on the lines-5%, 6+6 and 7-7, respectively of Fig. 3;

Fig; 8 is a section similar to Fig. 7, butshowing-ccrtain parts of the device in thci' short circuiting and grounding positions;

. 9 to -12 are perspective views of certain; of the details of the apparatus constituting our invention;

. Fig. 13 is a perspective view showing that side of the segment 30 opposite that shown in Fig. 12; i

Figs. 14 and 15 are respectively tront and sideelevations of a mechanical device for causing operation of our invention in case of failure of the current actuated elements; and Fig; 1-6 is a transverse section showing the connections between the segment and the insulatin disk.

In Fig.1 of the above drawings, 1 represents a portion of the chassis of a motor vehicle having a multi-cylinder engine 2 mounted within ahood 3 which abuts upon a. dash board 4. Fixed in this dash board and ithin the hood front end is exposed on that-face of the dash board next to the driver.- and has an opening for the reception of a key. "This casingpreferablyQ-though not'neccssarily has on its opposlte end a gong (i in closlng an electrical alarm dcvloo 6 wherolry upon llu: completion of a circuit; hereafter described, said.

gong or} othor suitable audible alarm is caused to operate continuouslyand loudly.

The casing is preferably made of substantial plate"stcel'and has entering it a number of conduclors depending uponthe number of cylinders of the engine and upon the particular numbor'of said cylinders which it is desired to'control by the al'n'mr'atus' One side 4,0 of suidiausing is made to' behodily removable and, has at one end a flange or edge 41 in which are set one or more projecting studs or pins 42 desi ned to enter correspondin 1y placed holes in the end of the casing a jacent the ong. I

The opposite end of t e removable side has fixed to its inner face a finger 48 projecting at right angles and formed with its end bent parallel with the annular flan e of a disk 44 fixed to and rotatable with t e barrel of a lock 45 preferably though not necessarily of Yale type, whose key hole opens on the front face of the casing. Said flange of the disk has formed in its notch 46 which, when in a definite and redetermined position corresponding to that positionof the lock barrel in which'the key-may not be removed therefrom, will permit of the insertion of said end of the locking hook 43 .into or its removal from the space inside said flange, thus permitting the locking or removal of the plate 40.

Rigidly though removably mounted .within the casing, preferably adjacent the disk I 44, are a pair of transverse partition-like supporting structures in the form of lates .47 and 23 made of insulating materia such as vulcanized fiber, in the first'of which is journaled a rotary-spindle 48 having a squared end fitting into a correspondingly shaped, centrally placed openings in the disk 44 "so-as to be turned thereby.

Fixed to this spindle is a p inion 48' meshing with a gear 49 of twice e number of teeth and fixed to. a spindle 50 suitably journaled in both of the supporting plates' I and 23,the arrangement being such. that two revolutions of the lock barrel are necessary to causethe spindle 50 to make one revolution. Between said plates there is also fixed to said spindle a circular plate or bushing 51 carryln concentrically with it aicircular plate 52 o insulating material. Tothe outer end of saidspindle is fixed a crank disk 53 which through a link or. rod- 56 while circularlyicurved on one edge, is

"preferably ofIa generally rectangular outline and has a number of-"slots 57 for the reception ofscrews 58 set in the plate 23 where-I by it is compelled to reci rocate in a straight .line when the crank dis 53 is turned.

Tn' the present instance I have shown six conductors entering the casin 5, of which those indicated at 8, 9 and 10 ea d from the .spark plugsof three of the cylinders of a four cylinder engine ;-.-the s'parkeplug of the: fourth cylinder being connect 60- in the customary manner through a conductor -11 to theme etc. or other current generatin' and distri uting-device or system'indicate at 12. The three terminals of this device or system'to which would customarilybe con-- nected theconductors 8, 9 and 10, areconto the conductors 10, 9 and 8.

I spectively attached to six terminals mounted on an insulatin r terminal plate 16 within the up er part of t 10, casing y means of suitab e short and preferably relatively fiexible conductors these terminals are respectively connected to a series of terminal posts 17, 18, 19, 20, 21 and 22, mounted on the frame plate 23 in the arc of a circle struck from the same center as the curved edge of the metal plate 56 so that they are simultaneousl engaged and short circuited when said p ate is moved into one of its extreme positions. .The inner ends of said posts are designed to berespectivel engaged by contacts 24, 25, 26 27,28 an 29,,arranged in the" arcof the same circle upon a segmental plate 30 of insulating material which is mounted to swing on a metallic bushing 59. This latter is rigidly fixed to the frame plate 23 concentric with its contacts and terminal posts and serves also as a bearing for the spindle 50. By means of suitable conductors, the contact 24 is permanently connected to the contact 25, and similarly the contacts26 and 28 are respectively connected to the contacts 27 and 29, so that when the segmental Iplate 30 is in a predetermined position, the

electrical connection with the contacts 18, 20 and 22, thus effect placing the three terminals of the magneto which are connected to wires 13, 14*and 15, in electrical connection with the spark plugshconnected 30 however, as above noted, is free to saving through an angle suflicient to move the contacts 2428 from engagement with the contacts 17-21 respectively into engagement -with the contacts 18-22 respectively, and

for the purpose of limiting its movement to this angle we mount on the plate 23 a pair of metallic posts or contacts 31 and 32 which also form part of a switch whose movable contact 33 is so placed on the edge of the segment 30. as to electrically connect them when said segment has been swung through-the angle noted. A Suitable spring 34 mounted on the plate 23 at all times-so acts on said segment 30 as. to tend to move it from aposition in which the contact 24 en gages the post 17 to the position-in .which the spring' contactl 33-engages the-posts 31 e segment and 32 and said coiitact 24 also engages the;-

contact 18.; I

On the 5 front" face of the plate 23 we mount a second metal'plate 35, providing it with elongatedf'slots 36'! for' the reception -of a pair-of screws 36 whereby'it'is slidably giuded toward andfrom'the posts 172 2,

its edge adjacent'said p'ostsbein'g formed on the same 'curve-Ias thatong-wh-ich the posts are mounted inorderlthat maysimultane- I ously engage and short'ci'rcult tnem when it is at onexof the ends of its path of movement; 'At onegsidethis metal plate has an extension 3,7;yvhich at'all times 1s imslida'ble electrical engagement with a fixed member 38 mounted at" one side of the plate 23 and permanently grounded on the-'casin 5.

- posts 17- 21; T

normally holdlthe plate 35 out 'of engagemerit with the;term'inal posts For purpose the segment 30 has pro ecting radial]! from its curved edge a stud or pm 64 Fm erably of insulatingmatenal and-so awed that'when the-{contact 24; of said t en gages the end of the -17, it 80 hits the arm 6 against the fiCtlOIl of the s ring 61 as to old the'shdlng plate '35 n t e desired outer orinactive position.

formingjpartof an electro-ma -ably mountedon thew P9 111 plate a'tg Said armature isnorma y hel byineans For the par 7 se of retainin il. e5

tal plate w t its associa the uboye indicated "positions, it has on lone a projection 65 designed to be engaged by.

a second profection $6 on the. armature S57 'et';68 suitof a suitable sprin in; su h p s fii fi t projections 651m reason of encrglzation of-said urn-nature is attracted, the segmental plate is at once released'so that 1t swings on its supporting structure 59 until its springfeon l currentsouree 'we able-form of port tact- 33 comes into engagement with-and is presented; from further movement by posts 31' and- 32.

The electro-magnet 6S- has one of mimils connected to a-bindiripost69 carried by the supporting plate 4 thispost in turn is connected through asuitable com the. le f he ePfin -j d,

ductbr' TO-to a terminal plate 71 mounted upon a body of insulating material '72 upon 'one .side of ,thecasing" 5, Wh1le-the.current for .bperatingourfl apparatusmay be taken from" a storage battery or any other. suitable. Sp

' referably utilize a s'u t V Elegand conveniently-11p; plicable' battery} siiri con tacts 73 and 74 at its oppos te endsyan' mounted. in the casing-5 between thestructures pro jectii g from the plate and the 1 end iad cent ithe gringo, 011510; said mgt ij electrical engagement th l 7 "its other contact ls'ln sim lar-enga i witli the metal of the casing.

The second tenninal ofthe qlectro-niagnet' 6,8; is electrically. connectedi'tb'tip pole piece structure 75a'nd thence through its arms-- tnre 67 to the catch onthe segment 5 5 0 I the. segneni aideeea plate in-a set position, although wsafiji y U i I thls. such a th ckness and 1s so placed-that it norsimultaneously engage and be electricallyconnectcd by a radially extendingcontact 82 mounted in the insulating. disk 52, when this is in a predetermined position.

The fixed metallic bearing bushing 59 has projecting from it an abutment 83 of flatten'ed V-shaped s'cction designed to cooperate with a spring pressed in 84 mounted in the metal bushi'n .7 51 an riveted to a fiat spring 85 to whic is also connected a latch 86; th,e arrangement bein such that when the bushing 51 is so turne as to bring the round pointed pin 84 against the sloping 8,ld8 0f the abutment 83, said pin is' forced inwardly and is thereby caused todlikewise draw. this from any possibility'of engagenient with the catch or abutment 87' o the segmental plate 30. g

move inwardly the latch' 86 so as to with is noted that the" a ature 67 of the-Q.

'electromagnet 68 has projecting'frol'n it an' arm 88 whichextends ina line radially to- 1 the insulating disk 52'a1id this atter-"is of mally pr'eventsl 'such'- a movement of' said armature toward the electro=magnet a's would allow the'catch 663011 the armature tg releasethe'projection'65 of the se ent a cutaway portion 89 which when itoccupies a'positxon with thelt'wo contacts SQ'and 81 in' engagement.w1th the disk contact82 will so; ate insulating diskgBQ, hfiwever',

perm-it movement of theaarmature toward the pole-piece of ,the- 'elect-ro-magnet and hicle which "18 be protectedthereby, the

"ring contact-isconnected-to arrinsuthat fit 'Willjjbegrounded oh the frame mnerea=' a grounded through itlto the frame ofthe m a chine andsoplaced-that whenleaidrlererfis contact?!) so mounted adjaeentjsome movable operating or other member 'on the,

v member as moved a ward the-spindle 50"imiiiediatel .'adjace nt moved intopnsitionutothrow'in. the (flu-m5, r v

'itwill come intoengagementjwith the fixed contact 90,

If desired to our long as the emergency example. is in position to apsply the brake. This. electrwmagnet contro an armature \98 having a contact 99 eapable of engaging with-a grounded contact 100 when the current is 'cut ofl from its circuit.

In the above described arrangement 'of parts the movable side 40 of the casin 5 may be released by soturnin the ke t at the resulting turning of the isk 44 rin the opening in the flange thereof imme ately over the hooked or'be'nt in end 43 the arm. The bottom end ofwthe side may -now be swung outwardly, "moving said j ,round ended pin 84M) hooked end through the flange ope after which the'side may be raised until t e'pins 42 clear the openings in the top of the (asing. On the other hand, the side may be locked in place by enterin the pins 42 in their openings, swingingv e lower end inwardly until the end 43 passes throu'h the flange openin of the disk 44 an then turning said k'into such a osition thatthe key may be removed, The angeof said" disk with the ins 42 thus eifectually prevent-removalo said side.

Under normal conditions of use of -a car. equipped with our device, the latter is first set by inserting the key in the lock and turning it in a counter-clockwise direction. As a result. of this motion, the spindle 40 is turned and this through the pinion 48 and gear 49' likewise turns theispindle 50. The rotationbf the latter spindle causes rotation of. the metal bushing 51 and of the insulating disk 525-carr'ied thereby,..with the result that sooner .or later the. latch .86 comes into engagement with e 'rojection 87 of thestekgmental plate 30' e action oi thespring 84; iromza- 'tion in which its contact- 83 engages" e contact posts 32 and 31, into a HOSitAQIl in which its catch -passes'-beyon and is-thereafter held from return movement bythe catch 66 on the armature 67. ...In-the meantime the continued turningof the disk 52 causes-the v go the abutment 83 .with the result that. 1t is forced back thereby. against the action of [the ring. 85

and rries with it the-latch .86 whi h is thus with di'a p .thedisk 52'may therea ter be turned in wn fromthe' pro l 'oir'87'so'jthat either" direction without afiecting the seg= mental plate '80 when this has been set:

In such position said plate has its contacts 2429.respectivelyin engagement with the terminalposts 1722.. Moreover, the

turn ing of the 'plate 30 to the 'ti'on. noted causes its peripheral project i i i 64 to act and link 54, the inner 5 projects from the upper short circuiting plate 35, so, that the latter is caused to slide odily away from and, remain out of engagement with the terminal posts 17-22. t the same time, through the crank disk 53 ort circuiting plate 56 is bodily moved down out-of engagement with said terminal posts; the key being proferably removed from the lock or its rotation stopped when it has been brought'to a definite position, as when it lies in a vertical plane. with its serratededge, uppermost.

The motor vehicle or car may now be put in operation and runin the customary man-' ner, for the timing system or magneto 12 has its terminals res ectively connected to the spark plugs of t ie proper cylinders of the engine 2 ;--the cylinder 2 being directly connected. to the ma eto 12 in-the' custom ary manner, while t e cylinder 2" throu h sit1on that the contact 82 is disengaged from the conductor 10, terminal post 18, condu ts ,25'and 24, terminal postl'l and conductorma eto. The same is true of the contacts 80 and 81. More iyer. owing to I the fact that the cutaway. 'ort ion 89 of said disk does not lie under t e '88 of the armature of the electro-magnet 68, said arm is retained in a position in which the catch the catch 65 of the segmental plate 30, even though the latter should be roughly arred or shaken.

If it is desired to leave the vehicle with 16 s 66 of the armatnrecannot be released from the .engine in operation but with-'our device set' to prevent unauthorized 'running or'operation' of its apparatus, the, key may-be turned through part of a revolution to a p05.

sition in which it ma .be withdrawn ironi the lockand while t is alterstheirelative positions ofthe disk 52 so-that it turns the contact 8,2".in engagement with the contacts 80 and 81 and ,h ewise.. brings the cutaway rtion 89 under the".arinature arm 88, it

plate 35 nor-does it cause the inner plate 56 i to be moved sufiiciently to allow it to cage theterminal posts 17.42. Obviously s contacts 90. and are separated'lsince thethe contacts 99 a' nd' 00-are.separated. I "If now it befaii cmpted'tr operate the car,- as by moving the lever 97 to a position to release the emergency brake,-the connection between thecontacts -95.'and 96 will be broken thus vdeiinergizing the magnet .94

65 through the lever 62 on the arm 60 which, and .alow1'ng the to the clntclf is open,--while since the'brake lever- 96 is in its set position thecontacts 95 and 96 -magnet 94is energized and 115. not afiectthe outer short circuit ng 50 bili contact 100. As a result current 'isfree to flow from the battery 72 through the plate 71, elcctro-magnet 68, armature 67, catches 66 and 65, conductor 76, contact 77, spring 78, conductors 79, contacts 81, 82 and 80, conductor 101 and contacts 99 and .100 to ground. v This encrgization of .the ;-electro-magnet 68 moves the armature 67; causing the projection 66 to release the. projection 65 so that the segmehtal plate 30 swings under the actionof the'spring 34 to a osition in which its contact 33- engages t e two posts 31 and 32. Current is then free to flow from the batte 72 through contacts 32, 33 and 31 w the ell mechanism 6' and thence to the ground, whereupon the gong or other audible alarm is set in operationand continues togive an alarm, At the same time the movement of the segmental plate to the positionindicated removes the projection 64 from'under the outer part of the lever 62, allowing this toswing in-v wardly and permitting theupper short cir- 'cuiting plate 'under the action of the spring '61 to move into a position in which it simultaneous] -enga all ofnthe contacts 17 22. bvious y-operation ofthe engine is. instantly stop since the igniinders 2*,52. and

tionTcircuitsof the 3 'as'jshort circuited.

2 are grounded as wdll,

-Moi'eover,', the turning of the segmental plate 30 'tothe' position noted. completely circuited, whi e the contact posts dlsarrangesthe' timing "off'the various cylinders of t the engine;- for 'the contact 17 ,is no longer engagedby the contact 24 on {the ental p ate 30 but is o 11 are connected'togethei' by the short, circuited contacts and 25, "so that in case of the failure'ofthe grounding and short circuiting g'ineil-a sparkis form,

to prevent o ration of the en-' inthe linder 2" e time whenz-itshould be ormed in the cylinder 2. Similarly-the ignition ,circuit ofthe cylinder 12 is open and a spark 4 is formed in theucylinde'r'iz at the time" it shriuld havebeen'gformed' in the cylinder 2'. Obviously therefore the engine'cannot, be operatedand it is a practical impossitoso re-arrange or, re wi're theconnectlons to its spark; plugs withoufithe exi v would,

penditure ofxconsiderable time and experi-'. same asfthose above E1051:-

. eisE e r a an operation o can! Bin ration ofthe alarm, as-Lwe and mis timing'of the ignition-system. I

inst: device is to be set while the engine 'is idleythe key is turneB through theother full revolution in addition to that prei ly si pmn is tha "WW5, t

tern of t structure 113, V V "Tuponftheball 110 thatthis' raised from:

hellgrounding, short circuitiiig Q result that the spindle is turned to such an extent that the crank disk 53 through the link 54 forces the lower short circuiting plate 56 into engagement with-all of the terminal posts 17-'22, thus as with the plate 35 effectually preventing an ignition in any of the cylinders because of the short circuiting and grounding of said terminalposts.

- It is to bevnoted that the movement of the segmental plate 30 to a position in V controlling, devices of the vehicle or the movement of any of its movable parts, the

conductor 101 is grounded and the circuit of results above noted.

In order that'the device shall operate to dlsarranglc the circuits? of the igniting sys;

e engine even; though 'the..c1 rcuit the electromagnet .68 is completed with the;

ofthe electro-magHet-68 should'become inr o rative, as by-open circuitin'g or failure 0 the current ureed72, we-provide the attachmentshown' in detail in 1.4, and

15. This consists of an abutment in, the

form of a rigid plate 111 supgorted in any desired manner so as to exten betweenthe' member 30 and the armature 67 and having between it and said armature a ball ke tfro'm lateral movement-and guided b si e flanges on said armature. The latter is normally maintained at an angle to theline ofthe abutment 111 b means of its sprin 112, and thus retains t e ball in anjeleva position; a p y y When however the structurercargying the armature, 'etc., is subject to the vibration in cidnt' upon the operation of'the engineer the running of thecar on which said engine is mounted, such vibration imparted to the armaturq allows the ball- 110 "to gradually :move down so as to force said armature 'toward .the poles of the electro-magnet until finally its catch 66 is caused to release the 00',- o crating catch 65 on theseg'ment 30 which ereupon operates as previously described; Inturningtojthe position 'injwhich its contactfiecn'gages thzdposts 31'jand' 32, a cam, by said segment so acts again held by the armature *BTunder the .aotionzofthe'spring112.. i, We claim igniting devices; and meaps for'automatiq 1;":

its'lower to'its upper-'positi6n .where; it is] 1. The: combination: of i a seat-fling, internal combustion engine having timed 46 aniignition system {means undefpredetern ined con ition s;

controlled device for'controlling the operativeness ofsaid-means' an electro-magnetic device controlli device means governed by-said device for automatically 'disarranging the connections of said circuits relatively to said ignitingd d vices when it is attempted to operate -v1ee.-

i The combination of an .enginehaving ignitiii' means; and 'an electro ma ctically control ed devicefor 1 summarie y] disarranging the timing ofi said in si nnderp redetermined conditions'jfifp 5. The'fcoinbination "of a engine;

nflding an -electrocircuiting and groundin the igniting means of the en ii e when jsai c, trolling means is operate under predetermined-conditions.

.,6."Thej 'coinbination o an gni ea.

disarrangingthektiin n Inf sa sgstem lune. .der predeterminedconitio an a mann- 'allyj =I;contro1 1d" Zd'e'v' -'f operativenessof fsaid s;"'-

The combination'fof anf e 'ne'. having.

disarr'anging ftl'i'e timi i of saidv system and a key- 8. l The combination jan ignition system; di'sarran an engineghaving means for automatically an ignition system means for automatically disarranging the'connections of said system sai means; a switch in circuit'with said evice;

with, key-controlled means for setting said disarranging means at will.

10. The combination of an engine having ignition devices for its f cylinders current cally disarrang ing the timing of said de-' vices when it is attempted to start said enf niting de- "ment to be automatically e ti i e for automatically th'efconnections fof said a sys- 3 tern;- an' eIectrQ-m'a'gnetic device co ntro 11.- ing said means; and a switch in circuit with distributing means; and mechanism connected between said devices and saidcurrent distributing means for short circuiting the former under predetermined conditions. 11. The combination of an engine having i nition-devices forits cylinders; current istributing means; and mechanism connected between'said devices andsaid means for rounding the latter underpredeterniin conditions.

12. The combination of an engine having ignition devices for its 'cylinders;. current distributing means; and mechanism connected between said devices and said means for changing the relative times of the delivery of current to said devices under predetermined conditions.

13., The combination of an engine having i ition devices for its cylinders; a current istributing device for the'engine; an instrument having .a series of terminals of which certain are connected to terminals of the current distributing device; with means for causing said terminals of the instru rounded under redetermined conditions, to same consistof a grounded net normally holding-said plate in itsdis- I engaged position; and aswitch controlling said electro-magnet.

14. The combination of an engine; igniting means therefor; a switch in circuit with in means therefor; a switch in circuit with said ignitingmeans; and an automatic mechanical device for actuating said switch when it is subject to vibration; with means for automaticallyresettin said device.

- 16. The combination 0 an engine; igniting means therefor;a switch connected .to

late normally disen-- fgaged from the terminals; an electro-maging means therefor; means'f'for'contro ing the operation of mechiinism driven from j said engine; a :switch' governed by-said' means; and'a device 'inc magnet in circuit with. said switch for short disarrange the circuits of said igniting 'means; with 'an automatic, vibration-actuated mechanical device for releasing said switch.

17. The combination in' an engine having an ignition system; a switch in circuit with said system and connectedto' render the same ino rative when in one'position; means inc uding an electromagnet forcausl gjoperation of theswitch un'der predeterswitch upon failure of the electromagnet.

'iio

' .mmed conditions; and an automatic mechanical device forcausing operation of the nition system theref r; a centre ling switch for said ignition system; an electro-magnet having a movable member controlling said switch; means for causing energization of the electro-magnet under predetermined condltlODS; with a mechanical device operative upon said n'iovable member to cause operation of the swltch in the event of the failure of the electro-magnet.

19. The combination of an engine; an ignition system therefor; a controllin switch connected in saidsystem; a device or 'gow erning the operation of said switch consisting of a movable and a fixed member, and a movable element operative to move the movable member when subjected to vibration.

20. '1he combination of-an'en ine; an ignition system therefor;-a switc in circuit with said ignition system; a movable springactuated member controlling the operation of said switch; a fixed member extending at an angle to such movable member; and

a roller between said members movable un-t derthe action of gravity to cause them to separate and permit operation of the switch.

21. "The combination of an en ine; an igin said ignition'system; means controlling the operation. of the' switch including an electro-magnet having an armature normally holding said switch in a set position; a fixed structure; with a roller operative be tween the armature and the fixed structure and movable under the action of gravity to se iarate said elements and release the-switch w ion the device is subjected to vibration. CHARLES F. DENGLER. .t J 01-] N L. RICKETTS.

20 nition system therefor; a switc connected 

